Resize any image for X (formerly Twitter) posts, header banners, and profile pictures. Free, private, and works entirely in your browser.
X (formerly Twitter) displays images at specific aspect ratios in the feed. Using the correct dimensions prevents unexpected cropping and ensures your images look sharp.
| Image Type | Recommended Size | Aspect Ratio |
|---|---|---|
| In-Feed Image | 1600 x 900 px | 16:9 |
| Square Post | 1080 x 1080 px | 1:1 |
| Header Banner | 1500 x 500 px | 3:1 |
| Profile Picture | 400 x 400 px | 1:1 |
For single-image posts, use 1600 x 900 pixels (16:9). This displays without cropping in the timeline and looks sharp on both desktop and mobile.
Yes. X compresses all uploaded images, especially large PNGs. For photos, JPG at 85% quality usually provides the best balance between file size and visual quality. PNGs under 900 KB are preserved better.
The recommended header banner size is 1500 x 500 pixels (3:1 aspect ratio). Keep important content centered, as the edges may be cropped on different screen sizes.
Yes. No account, no watermark, no limits. Everything runs in your browser -- your images never leave your device.